Kufamba kweMomentum Impulse uye Projectile - Matambudziko neMhinduro

Kufamba kweMomentum Impulse uye Projectile - Matambudziko neMhinduro

1. Bhora re 0.2-kg richapinzwa mugomba C, sezvakaratidzwa mumufananidzo uri pazasi. Munhu anorova bhora anorova musekondi 0.01 uye nzira yeBC yakafamba musekondi imwe chete. Sarudza hukuru hwesimba kuitira kuti bhora rigone kupinzwa mugomba C. Kukurumidza kunokonzerwa negiravhiti ndeye 10 m/s ².

Zvinozivikanwa:

Angle (θ) = 60 ^o

Huremu hwebhora (m) = 0.2 kg

Kukurumidza kunokonzerwa negiravhiti (g) = 10 m/s ²

Nguva yenguva (Δt) = 0.01 masekondi

Nguva yekufamba BC (t) = 1 sekondi

Kudiwa : Simba (F)

Solution:

Equation ye impulse : I = F Δt

Equation yekuchinja kwe momentum : Δp = m (v _t – vo _o ).

Kufungidzira kwakaenzana nekuchinja kwesimba :

Ini = Δp

F Δt = m (v _t – vo _o )

F = m (v _t – vo _o ) / Δt

Zvinozivikanwa:

Δt = 0.01 sekondi

m = 0.2 kg

v _t = kumhanya kwekupedzisira muequation ye impulse-momentum = kumhanya kwekutanga kwebhora (v _o ) mukufamba kweprojectile

v _o = kumhanya kwekutanga mu equation ye impulse-momentum = 0 m/s (pakutanga bhora pakuzorora)

F = m (v _t – vo _o ) / Δt

F = 0.2 (v _t – 0) / 0.01

F = 0.2 v _t / 0,01

inoenderera mberi ……

Tsvaga kumhanya kwekutanga kwebhora (v _o ) mukufamba kwebhora

Sezvo bhora richirohwa kusvika bhora rasvika padanho B = chikamu 1 chekufamba kwepfuti.

Bhora rinofamba kubva panzvimbo B kuenda kuC = chikamu chechipiri chekufamba kwepfuti.

Chikamu chechipiri chekufamba kwezviratidziro:

Kufamba kwechinhu chinobuda mugomba kunogona kunzwisiswa nekuongorora zvikamu zvekufamba zvakatwasuka uye zvakamira zvakasiyana. Kufamba kwe x kunoitika nevelocity isingachinji uye kufamba kwe y kunoitika nekumhanya kwegiravhiti nguva dzose.

Zvinozivikanwa:

Daro rakati sandara (x) = mamita mashanu

Nguva iri mumhepo (t) = 1 sekondi

x na t zvinozivikanwa kuitira kuti v _ox ikwanise kuverengwa uchishandisa equation yekufamba kwakafanana kwemutsara . v _ox chikamu chakatarwa chekukurumidza kwekutanga kwebhora.

v _ox = x / t = mamita mashanu / sekondi imwe = 5 m/s.

Chikamu chechipiri chekufamba kwezviratidziro:

Chikamu chekumhanya chakatarwa, v _ox, chinogara chakafanana saka v _ox muchikamu 1 chekufamba kweprojectile = v _ox muchikamu 2 chekufamba kweprojectile = 5 m/s.

Inozivikanwa

v _ox = 5 m/s

θ = 60 ^o

v _ox na θ zvinozivikanwa saka kumhanya kwekutanga (vo _o ) kunogona kuverengwa.

cos θ = adj / hyp

cos θ = v _ox / v _o

v _o = v _ox / cos θ = 5 / cos 60 ^o = 5 / 0.5 = 10 m/s

Kumhanya kwekutanga (vo ₎ i10 m/s.

Kumhanya kwekutanga kwebhora (v _o ) mukufamba kwepfuti = kumhanya kwekupedzisira kwebhora (v _t ) mu equation ye impulse-momentum.

Sarudza hukuru hwesimba (F)

F = 0.2 v _t / 0.01

F = 0.2 (10) / 0.01

F = 2 / 0.01

F = 200 Newton

1. Chii chiri hukama huripo pakati pepfungwa dzinokurumidza kuchinja (impulse) nekuchinja kwesimba (momentum)?
   • Pindura: Kufurirwa (Impulse) chibereko chesimba nenguva yarinoshanda, uye kwakaenzana nekuchinja kwesimba rechinhu. Pamasvomhu, $Impulse=\Delta p$, apo $\Delta p$ ndiko kuchinja kwesimba.
2. Kuwedzera kwenguva yekurovera, senge nzvimbo yekugumburwa mumotokari, kunokanganisa sei simba rinoonekwa panguva yekurovera?
   • Pindura: Kuwedzera nguva yekurovera kunoderedza simba rinowanikwa panguva yekurovera. Izvi zvinodaro nekuti kupindira (kuchinja kwesimba) kunogara kuripo pakurovera kwakapihwa, uye nekuwedzera nguva, simba rinopararira kwenguva yakareba, nokudaro zvichideredza simba rinowanikwa.
3. Chii chinoramba chakafanana nechinhu chiri kufamba pasi pesimba regiravhiti chete?
   • Pindura: Kumhanya kwakatwasuka kwechinhu chinoburitswa mudenga kunoramba kuripo kana giravhiti chete iri kushanda pachiri. Zvisinei, kumhanya kwakatwasuka kunochinja nekuda kwekumhanya kwegiravhiti.
4. Sei nzira yechinhu chinoburitswa pasi pesimba regiravhiti?
   • Pindura: Nzira iyi ndeyekufananidzira nekuti nepo kumhanya kwakatwasuka kuchiramba kuripo, kumhanya kwakatwasuka kuri kuchinja nguva dzose nekuda kwekukurumidzisa kwegiravhiti, zvichikonzera hukama hwequadratic pakati pekufamba kwakatwasuka nekwakatwasuka.
5. Chii chinoitika kukukura kwehurongwa hwakaparadzana kana pasina simba rekunze rinoita chimwe chinhu pahuri?
   • Pindura: Kana pasina simba rekunze rinoita chimwe chinhu pane imwe system, simba rayo rose rinoramba rakachengetwa. Izvi zvinozivikanwa sekuchengetedza simba.
6. Kurudziro inopihwa nebhora rebaseball inoenzaniswa sei kana bhora rikarohwa kuti riwane home run kana richingorohwa zvishoma?
   • Pindura: Simba rinopihwa kubhora rebaseball rakakura kana rikarohwa kuti riite home run zvichienzaniswa neparinorohwa zvishoma, sezvo shanduko yemomentum yebhora (kubva pakumira kusvika pakubhururuka kubva pabat) yakakura zvikuru muhome run.
7. Kana chinhu chinokanda pfuti chikaburitswa kubva pasi nekona yodzokera pasi, kumhanya kwacho kwekuburitswa nekumhara zvinoenzaniswa sei?
   • Pindura: Kana pasina kudzivirira kwemhepo, kumhanya kwekumhara kwechombo kuchaenzana nekumhanya kwacho kwekuburitswa. Izvi zvinokonzerwa nekuchengetedzwa kwesimba.
8. Kona yekuburitsa uye nzvimbo yekuburitsa pfuti zvinobatana sei, tichifunga kuti hapana kudzivirira kwemhepo?
   • Pindura: Pakumhanya kwekutanga kwakapihwa, huwandu hwepamusoro hwechinhu chinoburitswa chinosvika pakona yekuburitsa ye45 degrees. Kuburitsa pamakona ari pasi kana kupfuura 45 degrees kuchaita kuti pave nenhamba pfupi.
9. Sei kuwedzera nguva iyo simba rinoshanda pachinhu, sekubata zai neruoko rudiki, zvichideredza mukana wekupwanya kana kukuvadza chinhu chacho?

• Pindura: Kuwedzera nguva iyo simba rinoshanda kunoparadzira kusunda (kuchinja kwesimba) kwenguva yakareba, nokudaro zvichideredza simba rinowanikwa nechinhu chacho. Nekubata zai neruoko rudiki, simba rekubata rinopararira, zvichideredza mukana wekuti zai riputsike.